Investigations are underway into the theft of a car, moped and three motorbikes from Sheffield streets.
A car was taken from Rushdale Avenue, Meersbrook, after the keys were left in the door of the house it was parked outside.
South Yorkshire Police said the thief reached through the letter box to get the keys.
Officers are also investigating the theft of a moped parked in a garden in London Road, Abbeydale and the theft of motorbikes from Priestly Street, Highfield; Wolseley Road, Lowfield and Mansfield Road, Intake.
Anyone with information should call South Yorkshire Police on 101.